return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2Cl (chloromethyl radical)

using model chemistry: HSEh1PBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS 2A'
1 2 yes C2V 2B1

Conformer 1 (CS)

Jump to S1C2
Energy calculated at HSEh1PBE/3-21G*
 hartrees
Energy at 0K-496.939625
Energy at 298.15K 
HF Energy-496.939625
Nuclear repulsion energy45.277819
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HSEh1PBE/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3209 3080 4.56 89.83 0.12 0.22
2 A' 1453 1395 7.71 4.41 0.60 0.75
3 A' 832 798 37.13 6.50 0.30 0.47
4 A' 294 283 119.85 0.48 0.75 0.86
5 A" 3361 3227 0.08 46.98 0.75 0.86
6 A" 1024 983 0.96 5.76 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5086.5 cm-1
Scaled (by 0.9599) Zero Point Vibrational Energy (zpe) 4882.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HSEh1PBE/3-21G*
ABC
9.20296 0.52538 0.49701

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.000 1.119 0.000
Cl2 -0.000 -0.586 0.000
H3 0.000 1.625 0.953
H4 0.000 1.625 -0.953

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.70571.07921.0792
Cl21.70572.40822.4082
H31.07922.40821.9066
H41.07922.40821.9066

picture of chloromethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 117.951 Br2 C1 H4 117.951
H3 C1 H4 124.099
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.533      
2 Cl 0.022      
3 H 0.256      
4 H 0.256      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 1.225 0.000 1.225
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.483 0.001 0.000
y 0.001 -17.099 0.000
z 0.000 0.000 -18.354
Traceless
 xyz
x -2.757 0.001 0.000
y 0.001 2.319 0.000
z 0.000 0.000 0.437
Polar
3z2-r20.874
x2-y2-3.384
xy0.001
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.291 0.000 0.000
y 0.000 4.073 0.000
z 0.000 0.000 2.161


<r2> (average value of r2) Å2
<r2> 32.107
(<r2>)1/2 5.666

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HSEh1PBE/3-21G*
 hartrees
Energy at 0K-496.939625
Energy at 298.15K 
HF Energy-496.939625
Nuclear repulsion energy45.282366
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HSEh1PBE/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3209 3080 4.58 89.88 0.12 0.22
2 A1 1454 1395 7.70      
3 A1 832 799 37.07      
4 B1 296 284 119.79      
5 B2 3361 3226 0.09      
6 B2 1024 983 0.96      

Unscaled Zero Point Vibrational Energy (zpe) 5087.5 cm-1
Scaled (by 0.9599) Zero Point Vibrational Energy (zpe) 4883.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HSEh1PBE/3-21G*
ABC
9.20801 0.52548 0.49711

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.119
Cl2 0.000 0.000 0.586
H3 0.000 0.953 -1.626
H4 0.000 -0.953 -1.626

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.70541.07921.0792
Cl21.70542.40842.4084
H31.07922.40841.9061
H41.07922.40841.9061

picture of chloromethyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 117.985 Br2 C1 H4 117.985
H3 C1 H4 124.030
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.533      
2 Cl 0.022      
3 H 0.256      
4 H 0.256      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.224 1.224
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.482 0.000 0.000
y 0.000 -18.355 0.000
z 0.000 0.000 -17.097
Traceless
 xyz
x -2.756 0.000 0.000
y 0.000 0.434 0.000
z 0.000 0.000 2.322
Polar
3z2-r24.643
x2-y2-2.127
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.291 0.000 0.000
y 0.000 2.161 0.000
z 0.000 0.000 4.074


<r2> (average value of r2) Å2
<r2> 32.104
(<r2>)1/2 5.666